The possibility of damage from operating a...

Question 1 / 205eccefa1bacbc34ba4d475de

Question 1 of 205eccefa1bacbc34ba4d475de

The possibility of damage from operating a diesel engine at critical speeds is reduced by the use of __________.

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Question 1 of 20

5eccefa1bacbc34ba4d475de

The possibility of damage from operating a diesel engine at critical speeds is reduced by the use of __________.

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🔍 Key Concepts

• critical speed in diesel engines and how it relates to vibration • difference between torsional vibration in the crankshaft and vibration transmitted to the hull or foundations • purpose of governors, mounts, and dampers in engine installations

💭 Think About

• Think about what kind of damage occurs when an engine runs at or near a critical speed. Which part of the engine is most at risk? • Which device directly addresses twisting or oscillation of the crankshaft itself, rather than just controlling speed or isolating the engine from the ship’s structure? • For each choice, ask: does this mainly control speed, absorb motion between engine and hull, or reduce internal vibration in rotating parts?

✅ Before You Answer

• Identify which option is specifically designed to reduce torsional vibration in rotating shafts. • Separate devices that control engine speed from those that absorb or damp vibration. • Consider which component is usually fitted at the free end of the crankshaft to protect it from damage at critical speeds.

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Question 1 of 20

The possibility of damage from operating a diesel engine at critical speeds is reduced by the use of __________.

an isochronous governor

elastic engine mounts

a vibration damper

a cast iron bed plate with good flexible qualities

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Question 1 / 205eccefa1bacbc34ba4d475de

Question 1 of 205eccefa1bacbc34ba4d475de

The possibility of damage from operating a diesel engine at critical speeds is reduced by the use of __________.

Back

Question 1 of 20

5eccefa1bacbc34ba4d475de

The possibility of damage from operating a diesel engine at critical speeds is reduced by the use of __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed